You can put this solution on YOUR website! Don't give up.
Let's talk about multiplication.
You can multiply three things, like
a x b x c
or
5 x 8 x 2
but you can only take them 2 at a time
First do 5 x 8, which is 40
Then multiply 40 x 2 which is 80
So take your problem two factors at a time
(2w - 3)(2w + 3) is easiest
each term in the 2nd factor gets multiplied by each term in the 1st factor
Cancel -6w and +6w
Now multiply by 7w
